Window sash ventilating means



J V. EURICH April 29, 1969 WI NDOW SASH VENTILATING MEANS 'ofS Sheet Filed June 13, 1967 J. V. EURICH April 29, 1969 WINDOW. SASH VENTILATING MEANS Sheet Z of3 Filed June 13, 1967 April 9, 1969 J. v. EURICH 3,440,948

WINDOW SASH VENTILATING MEANS Filed June 15, 1967 Sheet 3 of s United States Patent Office 3,440,948 WINDOW SASH VENTILATING MEANS James Victor Enrich, Norwich, England, assignor to B. W. Bailey & Son Limited, Wellington, North Island, New Zealand, a corporation of New Zealand Filed June 13, 1967, Ser. No. 645,807 Claims priority, application Great Britain, June 13, 1966, 26,248/ 66 Int. Cl. E061) 7/10; F24f 7/00 US. Cl. 98-97 2 Claims ABSTRACT OF THE DISCLOSURE Ventilating means for ducting air from the exterior to the interior of a panel and preferably a panel of glass in a window frame to deliver a controllable flow of air adjacent and substantially parallel to the inner face of the glass panel. In particular, a C-shaped apertured body member, including a C-shaped shutter rotatably mounted thereon, controls the admission of air into the interior.

This invention relates to ventilating means.

In many modern buildings non-opening windows are installed and an air conditioning plant is operated to maintain satisfactory air conditions within the building. It is still desirable to provide ventilating means which may be personally operable by users of the building and experience has shown that ventilation provided by windows which will open is not satisfactory. Louvres or hopper type windows have been used in the past and have been generally unacceptable mainly because they cause drafts within the air conditioned interior.

It is therefore an object of the present invention to provide a ventilating means for conducting air from the exterior to the interior of a panel and particularly a panel of glass in a window which will allow a flow of air to be delivered into the interior Without causing any direct flow of air onto an occupier adjacent the ventilating means.

More particularly, the object of the invention is to provide ventilating means for a window sash having at least one transparent panel comprising an elongated hollow extruded lower transverse sash member provided with a horizontal member and a vertical member coacting to define a rebate for receiving and having sealed therein the edge of a transparent panel, a body member of C-shape in cross section, said body member being provided with a cylindrical back surface and the upper edge thereof being integral therewith the upper edge of said vertical member, a vertical downward extension integral with the lower edge of said body member, said lower edge and the lower surface of said horizontal member defining an air inlet leading to the interior of said body member, the lower surface of said horizontal member being extended into the body member to provide a bafile, an outlet from the interior of the body member constituted by a series of apertures divided by spacing bars in that portion of said body member adjacent said vertical member, a manually movable shutter of C-shape in cross section having a lesser inner periphery than the outer periphery of said body member, said shutter having an inner cylindrical surface carried by the cylindrical surface of said body member, and a handle for said shutter for rotating the shutter on said body to cover said outlet in one position thereof and to uncover said outlet in a further position thereof.

Further important objects and advantages of the present invention will become more readily apparent to persons skilled in the art from the detailed description and annexed drawings and in which drawings:

FIGURE 1 is a view in cross section through ventilating means according to one preferred form of the invention,

FIGURE 2 is a fragmentary perspective view partly in 3,440,948 Patented Apr. 29, 1969 elevation and partly in cross section of a portion of a window frame including the ventilating means according to the present invention,

FIGURE 3 is a view in cross section through a modified ventilating means according to the present invention,

FIGURE 4 is a fragmentary perspective view partly in elevation and partly in cross section of a portion of a win dow frame incorporating a ventilating means according to FIGURE 3,

FIGURE 5 is a view in cross section through a further modified form of the ventilating means according to the present invention,

FIGURE 6 is a detail of FIGURE 5, and

FIGURES 7 and 8 show components for use with the strip illustrated in FIGURE 5.

In one preferred form of the invention the ventilating means 1 comprises an elongated body member 2 preferably formed as an extrudable section and manufactured from aluminum or a suitable plastics material.

The body member 2 in cross section comprises in part a hollow C-shaped portion 3 arranged with the front of the C to lie in the same plane as the panel, that is, substantially vertically in use. An integrally formed U shaped portion 4 is provided dependent from the top of the C to define a longitudinal groove 5 arranged to receive the edge of a panel 6, preferably a glass panel, being supported. A base 4a of the U shaped member 4 preferably lies substantially on a radius at right angles to the plane containing the panel. An interior baflle flange 6a projects inwardly and in line with the base 4a for a distance approximately half the width of the C-shaped section. The upper face of the interior bafile flange 6a is sloped slightly. Also a thickened portion 7 is provided adjacent the base of the C to ensure that any moisture does not collect in the interior of the body member.

The body member 2 is completed by a dependent flange 8 extending from the bottom of the C arranged in use substantially parallel to the panel 6 and positioned slightly outside the inner wall of the U shaped member 4 thus providing a mounting means through which mounting screws 9 may be passed to fix the body member to a structural frame member for example a bottom rail 10 of a window frame.

Interior 11 of the C-shaped portion 3 provides a passageway with an interior opening 12 provided by a series of apertures formed in the top section of the C shaped part and extending slightly down the inner wall of the U shaped channel portion 4. These apertures are preferably milled from the extrusion leaving spacing bars 12a therebetween.

The space between the base of the U shaped portion 4- and the lower part of the C shaped part 3 defines an exterior opening 13 formed as a continuous elongated opening extend-ing for the full length of the extrusion.

An outer arm 14 of the U shaped portion 4 has the inner face inclined to provide a thickened top and a shaped weatherhood or shield 15 is arranged to engage thereon and extend down beyond the opening 13 thus shielding the opening 13 causing the air to move through a substantially S shaped path prior to passing out through the interior opening 12. The hood 15 is also preferably screwed in place by screws 16a.

It is desirable to provide a means of controlling the air flow through the body member 1 and to this end a semi-cylindrical cover 16 is provided and is shaped to engage with the outer surface of the C-shaped portion 3 of the body member 2. Upper edge 17 of the cover is feathered to provide a better seal against the inside of the glass panel 6. A handle 18 is formed with the cover which may also be an extruded section, preferably being extruded from a suitable plastics material.

At each end of the body member 2 end plugs are provided having a cross section corresponding to the cross section of the interior of the body portion. Also at spaced intervals along the body member support pieces may be provided with these pieces again being molded to conform with the cross sectional shape of the interior of the body portion. These support members provide additional rigidity to the body member and this may be desirable particularly where a large panel of glass is being supported in the panel engaging groove 5.

To use the present invention the body portion is fixed to the bottom rail of the window frame as illustrated in the drawings. The weatherhood and cover are fitted in place and the glass panel 6 is engaged in the panel engaging groove, and held firmly in place by putty.

The interior opening 12 provided by the series of apertures as above described is arranged to deliver a flow of air adjacent and substantially parallel to the interior surface of the glass panel 6. The flow of air can be controlled by positioning the cover 18 thus allowing controlled yentilation in a manner such that the flow of air passing in through the ventilating means is not delivered directly into the room in a manner likely to cause unpleasant drafts.

Because of the positioning of the interior opening 12 adjacent the inner face of the glass panel 6 any condensation on the glass panel will pass through the interior opening to be discharged through the body member to the outside of the window.

While it is believed more advantageous to position the ventilating means at the bottom of a window it may also be positioned at the sides of a window or with some modifications made to the extrusions to the top of the window. Also while it is preferred that the body member be attached to a member in the window frame, if desired the body member could be incorporated as part of the window frame itself.

A modified form of the invention is illustrated in FIGURES 3 and 4. In this case the cross section of the body member 1a is generally L shaped. However this section functions in a similar manner to that above described and will not be described in detail herein. The major modifications reside in the air flow control means which is provided by an internal shutter 19 also L shaped in cross section and arranged to engage behind holding flanges 20 and 21. Interior openings 22 are spaced further apart by a spacing member 23. Apertures are also provided through the shutter 19. When the shutter is moved along by an operator moving a handle 24 projecting through a slot 25 apertures 26 in the shutter may be moved into or out of alignment with the openings 22 in the body member.

A further modified construction is illustrated in FIG- URES to 8. In this case a shutter 27 is mounted on top of the body member and held in place by a retaining flange 28. The shutter 27 may be associated with the body member after a pane of glass has been fixed in position by springing the shutter into place. An operating knob 29 allows the shutter to be easily moved laterally so that the openings provided therein can be moved into or out of alignment with the openings to the body member.

An example of the end plugs above referred to but drawn to engage within the embodiment illustrated in FIGURE 5 is illustrated in FIGURE 7. FIGURE 8 illustrates an intermediate member which may be used for joining two aligned lengths of strip. Again this member has been drawn to engage within the member illustrated in FIGURE 5 although it will be realized that an appropriately shaped member will be provided for the other embodiments of the invention as well. The intermediate member illustrated is used to provide a bridge over a clamping device which is sometimes used in large window frames.

What I claim is:

1. A ventilating means for a window sash having at least one transparent panel comprising an elongated hollow extruded lower transverse sash member provided with a horizontal member and a vertical member co-acting to define a rebate for receiving and having sealed therein the edge of a transparent panel, a body member of C- shape in cross section, said body member being provided with a cylindrical back surface and the upper end thereof being integral with the upper edge of said vertical member, a vertical downward extension integral with the lower edge of said body member, said lower edge and the lower surface of said horizontal member defining an air inlet leading to the interior of said body, the lower surface of said horizontal member being extended into the body member to provide a baffle, and an outlet from the interior of the body member comprising a series of apertures divided by spacing bars in that portion of said body member adjacent said vertical member, a manually movable shutter of C-shape in cross section having a lesser inner periphery than the outer periphery of said body member, said shutter having an inner cylindrical surface carried by the cylindrical surface of said body member, and a handle for said shutter for rotating the shutter on said body to cover said outlet in one position thereof and to uncover said outlet in a further position thereof.

2. The ventilating means a claimed in claim 1 wherein said horizontal member is provided with a free upstanding end and a weatherhood depends from said upstanding end to protect said inlet.

References Cited UNITED STATES PATENTS 792,990 6/1905 Hough 9897 806,105 12/1905 Burroughs 9896 XR 856,020 6/1907 Bigelow 9897 929,766 8/1909 Hubbard 9897 1,116,625 11/1914 Pomerantz 49171 XR 1,885,230 11/1932 Chatfee 9897 2,236,294 3/1941 Lundell 9896 FRED C. MATTERN, JR., Primary Examiner.

MANUEL ANTONAKAS, Assistant Examiner. 

